A brace from young debutant Tom Bradshaw and Dave Hibbert's first goal in 12 games secured a 3-0 triumph at Crewe that ended Shrewsbury's run of six straight defeats.
Hibbert nodded in a first-half header before substitute Bradshaw scored a late brace as Crewe's terrible end to the season continued with their third successive loss.
Calvin Zola could have given the hosts the perfect start but headed over the bar before firing another shot into the side-netting.
Steven Schumacher then hit a post from the edge of the box and Clayton Donaldson curled over as the Alex carved out all the early chances.
Zola blew another good headed chance before Donaldson lifted the ball over stranded keeper David Button and onto the roof of the net.
But the Shrews took the lead against the run of play on the half-hour mark when Jake Simpson swung in an inviting cross and Hibbert headed in at the near post.
Ashley Westwood saw a fierce volley tipped to safety by Button after the break as Crewe looked for a leveller.
But they were lucky to still be in the game when substitute Steven Leslie's free-kick rattled the woodwork before Jamie Cureton hit the post 30 seconds later.
But substitute Bradshaw hit a stunning finish from 30 yards with four minutes to go before side-footing home his second from close range in injury time.
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